Cast-iron ingot mold



Oct 8, 1929. ta. 6. REDMANN CAST IRON INGOT MOLD Filed Nov. 15. 1928 VEN TOR. ((4% vwn M w? ATTORNEY FTP/l ROBERT G. REDMANN,

Patented Oct. 8, 1929 UNITED STATES V motes PATENT OFFICE nay COMPANY,

OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE SEEESIONS FOUN- OF BRISTOL,CONNECTICUT, A CORPORATION CAST-IRON meow MOLD Application filedNovember 15, 1928.

My invention relates to improvements on cast iron ingot molds of thegeneral form that is shown and described in the application filed bymyself September 1, 1928, Serial No. 303,592, and the object of mypresent improvement is to provide means for connecting the two parts ofthe mold and for locking the parts in the closed position that will beoperatively effective and efficient and that will permit of readilyseparating and disconnecting the parts.

In the accompanying drawing Figure 1 is a front elevation of a cast ironingot mold that has the two parts hingedly connected and that isprovided with locking means embodying my invention.

Figure 2 is a side elevation of the same.

Figure 3 is a fragmentary view on an enlarged scale of the side of theback part.

Figure 1 is a similar view of the front part.

Figure 5 is a view of the wedge and adjacent parts as viewed from therear.

Figure 6 is a sectional view on the line 6-6 of Fig. 2, showingdove-tail cross-section of the wedge and the guideways therefor.

Figure 7 is a view corresponding to Fig. 5 with the wedge in a differentposition.

My improved cast iron ingot mold comprises a back 10 and a front 11 thatare hingedly connected by their lower ends by improved means to bedescribed and that are surmounted by a pouring cup or strainer 12 thatis hingedly connected to said back 10 in the manner described in theapplication that is referred to above. Also, the locking means areimproved, involving the use of a wedge 13 at each of the differentlocking points or stations, of which latter there is provided aplurality located at the sides and distributed along the length, thenumber varying according to the length of the mold.

Both the hinge connection and the locking means permit of readilyseparating the front from the back bodily.

As to the hinge connection, the front 11 is provided with a pair of lugs14 that overhang the lower end portion or supporting portion 15 of theback 10 and that are opposed respectively to the adjacent outer faces 16thereof. Each lug 14 is provided with aninward- Serial No. 319,593.

ly projecting hinge or pintle member 17 that I I cooperates with asuitable recess 18 that is provided in the corresponding outer face 16.Said recess 18 suggests a modified form of the receiving recess of abayonet joint, being generally of U-shape, comprising an entrance branch19 that opens transversely through the face 16; a longitudinallydirected connecting passage 20; and a shorter bearing branch that isclosed at the end 22 to provide the bearing for the pin or pintle member17.

The structure described provides a hinge connection that permits ofswinging the front to and fro relatively to the back for closing thepouring cavity and opening to remove the casting substantially in theusual manner and permits of bodily separating the front from the back.

The locking means comprise suitable lugs for cooperating with the wedge13, involving on one of the mold parts an overhanging structure forholding one lug and on the other of the mold parts spaced lugs foradmitting said one lug along or through the space therebetween, wherebywhen the wedge is removed the mold parts can be freely separated.

In the structure that is shown the back 10 carries the overhanging partor wedge hook 23 that supports: the single lug 241. The spaced lugs 25are provided on the front 11 and these are separated by the space 26.

In use, the wedge 13 bridges the space 26 and as it is driven t'o-theholding position serves to lock the back 10 and front 11.

Considering details, the wedge 13 is made of dovetail shape for thecross-section and the ways 27 or contacting faces on the spaced lugs 27are under-cut to. correspond so that there is a tendency to locate theholding strain on the side of the inner corner 28 of the lug. Also, thisform serves to keep the wedge from being forced outwardly and separating"the wedge from the back 10. Further holding means are provided for thewedge so as to positively retain the wedge at the side of the supportingback 10, comprising an overhanging housing or wedge box 29 on said front11 and a special shape for the wedge involving lengthwise taperingthere'of, M

and a cooperatingshape for the'boX-way.

Said housing 29 supports a depending plate-like web or rib 30 that isseparated froin the adjacent side face 31 of the front 11 by a space 32for admitting the wedge and the inner face 33 of said rib 30 serves as apressure face for making forcible sliding contact with the outer face ofthe wedge. Said inner Ge 33 is suitably inclined and the wedge haseither the whole or a portion of the opposed face 34 correspondinglyinclined so that when the wedge is lifted beyond the locking position inits engagement with the mold lugs the wedge itself will be held by awedging effect within the space 32. r

In other words, the wedge is made wedgeshape for the usual functionas awedge and is also made wedge-shape as to its thickness either for asuitable portion of its length, or such tapering of the wedge may beextended throughout the entire length thereof. Only the thickest partofthe wedge functions in holding the wedge in the wedge box, and saidthickest part is towards or adjacent the small end 35 of the wedge 13 asto the width, which functions in holding the mold back member 10 and thefront member 11 in the locked position.

,Thestrains to which the locking lugs are subjected in casting arerelatively enormous and, therefore, I find it desirable to incorporatein the body portion 36 of the wedge hook 23 a reinforcing member 37 ofwrought iron rod that is, embedded therein in casting. As shown, saidreinforcing member 37 is of U- shape and the ends 38 thereof projectbeyond the adjacent outside face of the hook body portion 36 and areheaded over.

At the end of the wedge 13 remote from the narrow end 35, that is tosay, at the head end or the large end there is provided an overhanginglug 39 that serves as a handle or releasing lug that can be struck by ahammer to loosen the locking hold.

The body portion 36 of the hook 23 is outside the lug 24 that issupported thereby. The wedge is positioned between said body portion andthe opposed side face of the mold.

I claim as my invention z- 1. In a cast iron ingot mold, a back and afront constructed to meet by their confronting edges and provided withlocking means for holding in closed position, said locking beingprovided with a circuitous or bayonetjoint slot, and the other face ofeach pair havipg a pintle lug that projects into the said s 0t.

3. In a cast iron ingot mold as described in claim 1, said overhangingpart comprising a body portion, and said body portion having areinforcing structure in the form of a L shaped rod of wrought iron orthe like that is cast therein.

4. In a cast iron ingot mold as described in claim 1, said overhangingpart comprisinga body portion that extends along and across the moldside at the junction of the two mold parts and across the wedge, andsaid bod portion being on the other side of said wedge, the wedge beingdirectly opposed to and in face to face contact with the adjacentportion of the side face of the mold.

5. In a cast iron ingot mold, two mold parts, one of said parts havingextensions that project outside the other part on the opposite sides,one of said mold parts being provided with circuitous bayonet jointslots, and the other of said parts having pintle lugs that enter saidslots for effecting pivotal connection of the mold parts.

6. In a cast iron ingot mold, two mold parts that meet along contactingfaces, a set of lugs on said parts for cooperating with means forholding the mold parts together, said means being in the form of a wedgethat is adapted to be moved to and fro between the locking and unlockingpositions, a guide housing on one of said mold parts having faces forcooperating with said wedge, and said wedge having the small endthickened for making frictional engagement with the opposed guide facesfor holding the wedge in the position in which the wedge and lugs areunlocked.

ROBERT G. REDMANN.

means comprising a wedge and integral lugs for cooperating therewith,said lugs comprising a single lug supported by means of an overhangingpart on one of the mold parts and a pair of spaced lugs on the other ofthe mold parts.

2. In a cast iron ingot mold as described in claim 1, said back andfront being provided with hinge-connecting means that permit ofseparation, one from the other, when the mold parts are in the openposition, comprising overlapping faces on the opposite sides of the moldparts, one face of each pair yea

